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Which of the following conditions correc...

Which of the following conditions correctly describes the manner of determining the sex in a given example

A

Homozygous sex chromosome XX produces male in Drosophila

B

XO type of sex determines male sex in grasshopper.

C

Homozygous sex chromosome ZZ determines female sex in birds.

D

XO condition in human as found in klinefelter's syndrome determines female sex.

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The correct Answer is:
b
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MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS (MCQs):)
  1. The number of chromosomes in Klinefelter's syndrome is

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  2. Double lines in a pedigree analysis show:

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  3. Which of the following conditions correctly describes the manner of de...

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  4. Conditions of a karyotype 2n pm 1 and 2n pm 2 are called

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  5. Phenotype of an organism is the result of

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  6. Which of the following most appropriately describes haemophilia?

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  7. A tall true breeding garden pea plant is crossed with a dwarf true bre...

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  8. Pick out the correct statement (I) Haemophilia is a sex-linked reces...

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  9. Which one of the following generates new genetic combinations leading ...

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  10. the mechanism that causes a gene to move from one linkage group to a...

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  11. A true breeding plant is

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  12. If a colourblind man marries a woman who is homozygous for normal colo...

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  13. In a colour-blind man marries a woman who is parental-type offspring w...

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  14. Thalassemia and sickle-cell anaemia are caused due to a problem in glo...

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  15. The genotypes of a husband and wife are I^(A)I^(B) and I^(A)i. Among t...

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  16. A disease caused by an autosomal primary non-disjunction is

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  17. Among the following characters, which one was not considered by Mendel...

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  18. Which one from those given below is the period of Mendel's hybridisat...

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  19. Select the correct match

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  20. Which of the following pairs is wrongly matched?

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